OverviewWhat better way to celebrate Halloween in Gotham than by bringing the most terrifying villains together? The Joker leads Scarecrow, Clayface, Silver Banshee and Solomon Grundy through the streets of Gotham to draw Batman's attention while the real threat, a program called 'Digital Laughter', is released to destroy the city's vital technology. Batman brings his own party into the mix and teams up with Nightwing, Red Robin, Green Arrow and Cyborg to bring down the Joker and make Gotham safe for another night.